@Override
        public abstract boolean equals(Object o);

        @Override
        public abstract int hashCode();

        @Override
        public boolean isEmpty() {
            return getDelegate(false).isEmpty();
        }

        @Override
        public Iterator<T> iterator() {
            return new MutationSafeIterator(getDelegate(false).iterator());
        }

        @Override

        for (String className : data.getDependencies().keySet()) {
            Set<String> superTypes = registry.getSuperTypes(className);
            if (!superTypes.isEmpty()) {
                dependenciesSuperTypes.put(className, new TreeSet<>(superTypes));
            }
        }

        createInstrumentationClasspathMarker(outputs);

            // Else, wait for the next update event
        }
    }

    private void renderNow() {
        // Remove event only as it is handled, and leave unhandled events in the queue
        while (!queue.isEmpty()) {
            OutputEvent event = queue.remove(0);
            listener.onOutput(event);
        }
    }

    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3).iterator()).read());
    assertFalse(CharSource.concat(c1, c2, c3).isEmpty());

    CharSource emptyConcat = CharSource.concat(CharSource.empty(), CharSource.empty());
    assertTrue(emptyConcat.isEmpty());
  }

  public void testConcat_infiniteIterable() throws IOException {
    CharSource source = CharSource.wrap("abcd");

        Stream<String> messages = ValidationProblemSerialization.toPlainMessage(problems).sorted();
        if (problems.isEmpty()) {
            getLogger().info("Plugin validation finished without warnings.");
        } else {

            return propertiesMetadata;
        }

        @Override
        public boolean hasAnnotatedProperties() {
            return !propertiesMetadata.isEmpty();
        }

        @Override
        public PropertyAnnotationHandler getAnnotationHandlerFor(PropertyMetadata propertyMetadata) {
            return annotationHandlers.get(propertyMetadata.getPropertyType());

        warnOnInvalidInternalAPIUsage("contains(File)", ProperMethodUsage.RESOLVABLE);
        return getIntrinsicFiles().contains(file);
    }

    @Override
    public boolean isEmpty() {
        return getIntrinsicFiles().isEmpty();
    }

    @Override
    @Deprecated
    public Set<File> files(Dependency... dependencies) {
        Set<Dependency> deps = WrapUtil.toLinkedSet(dependencies);

    void takeSuccessfully() {
      assertEquals(EXPECTED_TAKE, takeUninterruptibly(queue));
      completed.assertCompletionExpected();
      assertTrue(queue.isEmpty());
    }

    private static void scheduleEnableReads(BlockingQueue<String> queue, long countdownInMillis) {
      Runnable toRun = new EnableReads(queue, countdownInMillis);

            versions.addAll(versioning.getVersions());
            versioning.setVersions(new ArrayList<>(versions));
        }

        // just carry-on as-is
        if (!recessive.getPlugins().isEmpty()) {
            metadata.setPlugins(new ArrayList<>(recessive.getPlugins()));
        }
    }

    public Object getKey() {
        return getGroupId() + ':' + getArtifactId();
    }

        }

        metadata = metadata.withVersioning(versioning.build());

        // just carry-on as-is
        if (recessive.getPlugins() != null && !recessive.getPlugins().isEmpty()) {
            metadata = metadata.withPlugins(new ArrayList<>(recessive.getPlugins()));
        }
    }

    public Object getKey() {
        return getGroupId() + ':' + getArtifactId();
    }